Which of the following is the meaning of SFD in the Ethernet frame structure?
Fiber loss includes bending loss, absorption loss and scattering loss.
When the ACT indicator of the SDH board is off, it means that the board has a hardware failure and cannot be used.
When the sender detects that the b6-b8 of the K2 byte is 110, it means that the sender has reported an alarm ().
SL64 board is available for OSN 2500.
The device IP address of the gateway element and the non-gateway element must be set in the same network segment.
The clock unit can only access the external clock source as the timing signal source of the system through the external clock interface. In addition; It can also output a processed clock and provide a clock source for other devices that need timing.
The number of bit False blocks on each VC4 channel is detected by B3 on the receiving side. At the same time, the information is sent back to the sender via Q, and HP-REI and HP-FEBBE report on the sender.
An unprotected chain consists of four net elements; ME1, NE2, NE3 and NE4.
Create an end-to-end VC4 path NE1-NE4 and add NE5 between NE2 and NE3 for capacity expansion.
The original configuration remains unchanged and no services are configured on the NE5.
In this case, the unprotected chain becomes NE1-NE2-NE5NE3-NE4, how many VC4 paths can be searched?
Optical module parameter "L-64.2" in the "2" indicates which of the following working windows?
